nsHTMLTableAccessible.cpp

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- *//* ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is mozilla.org code. * * The Initial Developer of the Original Code is * Netscape Communications Corporation. * Portions created by the Initial Developer are Copyright (C) 1998 * the Initial Developer. All Rights Reserved. * * Contributor(s): * Author: Aaron Leventhal (aaronl@netscape.com) * * Alternatively, the contents of this file may be used under the terms of * either of the GNU General Public License Version 2 or later (the "GPL"), * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */#include "nsHTMLTableAccessible.h"#include "nsAccessibilityAtoms.h"#include "nsIDOMElement.h"#include "nsINameSpaceManager.h"
NS_IMPL_ISUPPORTS_INHERITED0(nsHTMLTableCellAccessible, nsBlockAccessible)
nsHTMLTableCellAccessible::nsHTMLTableCellAccessible(nsIDOMNode* aDomNode, nsIWeakReference* aShell):
nsBlockAccessible(aDomNode, aShell)
{
}
/* unsigned long getRole (); */
NS_IMETHODIMP nsHTMLTableCellAccessible::GetRole(PRUint32 *aResult)
{
*aResult = ROLE_CELL;
return NS_OK;
}
NS_IMETHODIMP nsHTMLTableCellAccessible::GetState(PRUint32 *aResult)
{
nsAccessible::GetState(aResult);
*aResult &= ~STATE_FOCUSABLE; // Inherit all states except focusable state since table cells cannot be focusedreturn NS_OK;
}
nsHTMLTableCaptionAccessible::nsHTMLTableCaptionAccessible
(nsIDOMNode* aDomNode, nsIWeakReference* aShell):
nsAccessibleWrap(aDomNode, aShell)
{
Init(); // Make sure this generated accessible of the table is cached
}
NS_IMETHODIMP
nsHTMLTableCaptionAccessible::GetState(PRUint32 *aResult)
{
nsAccessible::GetState(aResult);
*aResult &= ~STATE_FOCUSABLE;
return NS_OK;
}
NS_IMETHODIMP
nsHTMLTableCaptionAccessible::GetValue(nsAString& aResult)
{
aResult.Truncate(); // Default name is blank
nsCOMPtr<nsIContent> captionContent(do_QueryInterface(mDOMNode));
AppendFlatStringFromSubtree(captionContent, &aResult);
return NS_OK;
}
NS_IMPL_ISUPPORTS_INHERITED0(nsHTMLTableAccessible, nsBlockAccessible)
nsHTMLTableAccessible::nsHTMLTableAccessible(nsIDOMNode* aDomNode, nsIWeakReference* aShell):
nsBlockAccessible(aDomNode, aShell)
{
}
/* unsigned long getRole (); */
NS_IMETHODIMP nsHTMLTableAccessible::GetRole(PRUint32 *aResult)
{
*aResult = ROLE_TABLE;
return NS_OK;
}
NS_IMETHODIMP nsHTMLTableAccessible::GetState(PRUint32 *aResult)
{
nsAccessible::GetState(aResult);
*aResult |= STATE_READONLY;
*aResult &= ~STATE_FOCUSABLE; // Inherit all states except focusable state since tables cannot be focusedreturn NS_OK;
}
NS_IMETHODIMP nsHTMLTableAccessible::GetName(nsAString& aName)
{
aName.Truncate(); // Default name is blankif (mRoleMapEntry) {
nsAccessible::GetName(aName);
if (!aName.IsEmpty()) {
return NS_OK;
}
}
nsCOMPtr<nsIDOMElement> element(do_QueryInterface(mDOMNode));
if (element) {
nsCOMPtr<nsIDOMNodeList> captions;
nsAutoString nameSpaceURI;
element->GetNamespaceURI(nameSpaceURI);
element->GetElementsByTagNameNS(nameSpaceURI, NS_LITERAL_STRING("caption"),
getter_AddRefs(captions));
if (captions) {
nsCOMPtr<nsIDOMNode> captionNode;
captions->Item(0, getter_AddRefs(captionNode));
if (captionNode) {
nsCOMPtr<nsIContent> captionContent(do_QueryInterface(captionNode));
AppendFlatStringFromSubtree(captionContent, &aName);
}
}
if (aName.IsEmpty()) {
nsCOMPtr<nsIContent> content(do_QueryInterface(element));
NS_ASSERTION(content, "No content for DOM element");
content->GetAttr(kNameSpaceID_None, nsAccessibilityAtoms::summary, aName);
}
}
return NS_OK;
}